B757 first officer reported encountering wake turbulence at FL285 in trail of a B737-900 on descent ...

Attributes
ACN	1440290
Time
Date	201704
Place
Locale Reference	IAH.Airport
State Reference	TX
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Descent
Route In Use	STAR TTORO3
Flight Plan	IFR
Aircraft 2
Make Model Name	B737-900
Operating Under FAR Part	Part 121
Flight Phase	Descent
Flight Plan	IFR
Person 1
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Type 808
Events
Anomaly	Inflight Event / Encounter Wake Vortex Encounter

Narrative:

Descending via the ttoro arrival; vacating FL290; encountered moderate wake turbulence at FL285. Approximately 10-15 degrees of roll. PF disconnected autopilot and leveled aircraft briefly; then reengaged automation. Queried ATC as to the type of aircraft. Was a 737-900 7 NM ahead. The seat belt sign was off at the time. We spoke to fas after the event and all was normal in the back.

Original NASA ASRS Text

Title: B757 First Officer reported encountering wake turbulence at FL285 in trail of a B737-900 on descent into IAH.

Narrative: Descending via the TTORO arrival; vacating FL290; encountered moderate wake turbulence at FL285. Approximately 10-15 degrees of roll. PF disconnected autopilot and leveled aircraft briefly; then reengaged automation. Queried ATC as to the type of aircraft. Was a 737-900 7 NM ahead. The seat belt sign was off at the time. We spoke to FAs after the event and all was normal in the back.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

B757 first officer reported encountering wake turbulence at FL285 in trail of a B737-900 on descent into iah.